摘要
在民用飞机持续适航阶段,需要开展风险评估工作,以保证运营安全水平能够维持在可接受的范围之内。基于运输类飞机风险评估方法(TARAM)及风险准则,考虑不同的结构裂纹尺寸,给出基于机队故障数、临界裂纹、特征寿命的机队风险值计算方法;以机身增压边界结构受到循环增压载荷的疲劳裂纹为例,进行持续安全风险评估,计算该事件的风险水平,以及纠正措施实施时限;并通过使用纠正措施实施时限内个人风险进行验证。结果表明:个人风险低于风险阈值,本文制定的纠正措施及实施时限满足机队持续安全要求,可保证该机队的运行安全。
In the continuous airworthiness stage of civil aircraft,risk assessment needs to be carried out to ensure that the operation safety level can be maintained within an acceptable range.Based on the transport aircraft risk assessment method(TARAM)and the risk criteria,by considering different crack sizes,the calculation method of fleet risk value is given in this paper according to the fleet fault number,critical crack and characteristic life.Taking the fatigue crack of the fuselage supercharging boundary structure as an example for ongoing safety risk assessment,the risk level of the event,and the time limit of corrective action implementation are calculated.And the implementation time limit of corrective measures is validated by individual risk within time limit using corrective actions.Results show that the individual risk is below the risk threshold.It can be concluded that the corrective measures and implementation time limit formulated in this article can meet the continuous safety requirements of the fleet and thus ensure the safe operation of the fleet.
作者
贾宝惠
马语蔚
王卓
王毅强
JIA Baohui;MA Yuwei;WANG Zhuo;WANG Yiqiang(School of Transportation Science and Engineering,Civil Aviation University of China,Tianjin 300300,China)
出处
《航空工程进展》
CSCD
2021年第5期27-34,49,共9页
Advances in Aeronautical Science and Engineering
基金
国家自然科学基金(民航联合基金)(U2033209)。
